a{
    text-decoration: none;
    outline: none;
    color: #008FF4;
}
.big-div {
    padding: 30px 0;
    background-color: #f5f5f5;
}

.margin-left-right {
    padding: 20px 0 100px;
    margin: 0 80px;
    background-color: #fff;
    text-align: center;
}

.banner img {
    margin: 119px auto 40px;
}
.tit{
    font-size: 20px;
}

.color-999 {
    color: #999;
}